1. Ensure vehicle is unladen condition*.* Fuel, radiator coolant and engine oil full. Spare tire, jack,hand tools and mats in designated positions.
2. Have a driver sit in the driver's seat and one person sit on the rear end. Then have the person on the rear end slowly get off
the vehicle. This is necessary to stabilize suspension de¯ec-
tion.
3. Gradually depress brake pedal and attach a lever to the stop- per bolt, then adjust length ``L'' as follows:Length ``L'': Approx. 175.2 - 178.2 mm (6.90 - 7.02 in)
4. Remove front LH tire.
5. Connect tool to air bleeders on front LH brake caliper and rear LH or RH brake wheel cylinder.
6. Install front LH tire.
Before installing front LH tire, con®rm the tool is not touching
the front LH wheel.
7. Bleed air from Tool.
8. Raise front brake pressure to 4,904 kPa (49.0 bar, 50 kg/cm
2,
711 psi) and 9,807 kPa (98.1 bar, 100 kg/cm2, 1,422 psi) and
check rear brake pressure. Rear brake pressure: Refer to table on next page.
SBR287E
SBR822BA
SBR823BA
SBR377D
BRAKE HYDRAULIC LINE/CONTROL VALVE
Load Sensing Valve (Cont'd)
BR-7
9. Set down weight slowly over axle center so that sensor springlength becomes the same as when in loaded condition (Refer
to table below). Check rear brake pressure in the same way
described in step 7.
4-door rear disc brake
Unit: kPa (bar, kg/cm2, psi)
Sensor spring
length ``L''* mm (in) Front brake
pressure
4,904 (49.0, 50, 711) Front brake
pressure 9,807
(98.1, 100, 1,422)
Rear brake
pressure Without
weight 175.2 - 178.2
(6.90 - 7.02) 2,158 - 3,138
(21.58 - 31.38, 22.0 - 32.0,313 - 455) 3,629 - 4,609
(36.29 - 46.09, 37.0 - 47.0,526 - 668)
With
weight 193.6 - 196.6
(7.62 - 7.74) 2,746 - 4,707
(27.46 - 47.07, 28.0 - 48.0,398 - 683) 4,217 - 6,178
(42.17 - 61.78, 43.0 - 63.0,611 - 896)
*: Depressed brake pedal.
10. Bleed air after disconnecting the tool. Refer to ``Bleeding Brake System'', BR-4.
11. Install front LH tire.
REMOVAL AND INSTALLATION
CAUTION:
+ Re®ll with new brake ¯uid ``DOT 3''.
+ Be careful not to splash brake ¯uid on painted areas; it
may cause paint damage. If brake ¯uid is splashed on
painted areas, wash it away with water immediately.
+ Do not reuse Load Sensing Valve once it is disassembled.
+ Replace damaged Load Sensing Valve as an assembly.
+ When disassembling, apply multi-purpose grease to all rubbing
areas.
SBR378D
BRAKE HYDRAULIC LINE/CONTROL VALVE
Load Sensing Valve (Cont'd)
BR-8
jA
NoteCHECK TIRE.
- ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Check for in¯ation pressure, wear and
size of each tire.
OK
cNG Note
Adjust tire pressure or
replace tire(s).
NoteCHECK WHEEL BEARING.
- ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Check wheel bearing axial end play.
OK
Note CHECK SENSOR ROTOR.
- ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Check sensor rotor for teeth damage.
OK
cNG Note
Replace sensor rotor.
CHECK HARNESS CONNECTOR.
- ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Check ABS actuator and electric unit pin
terminals for damage or the connection of
ABS actuator and electric unit harness
connector. Reconnect ABS actuator and
electric unit harness connector. Then
retest.
Note: Wheel position should be distinguished by code num- bers except code No. 18 (sensor rotor).
.
.
.
.
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
Diagnostic Procedure 1 (Wheel sensor or rotor)
(Cont'd)
BR-58
